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Cheap flights from Philadelphia to Saint Croix from $163

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Philadelphia to Saint Croix departing on 2/23. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Spirit Airlines Logo
6:00 am - 3:40 pm
PHL
-
STX
8h 40m
1 stop
Spirit Airlines Logo
4:37 pm - 11:50 pm
STX
-
PHL
8h 13m
1 stop
$163Spirit Airlines
Mon, Feb 23 - Fri, Feb 27
Spirit Airlines Logo
6:00 am - 3:40 pm
PHL
-
STX
8h 40m
1 stop
Spirit Airlines Logo
4:37 pm - 11:50 pm
STX
-
PHL
8h 13m
1 stop
$191Spirit Airlines
Mon, Feb 23 - Fri, Feb 27
Spirit Airlines Logo
5:57 pm - 2:40 pm
PHL
-
STX
20h 43m
1 stop
Spirit Airlines Logo
3:37 pm - 11:59 pm
STX
-
PHL
8h 22m
1 stop
$229Spirit Airlines
Fri, Apr 24 - Fri, May 1
Spirit Airlines Logo
6:15 am - 2:40 pm
PHL
-
STX
8h 25m
1 stop
Spirit Airlines Logo
3:37 pm - 11:59 pm
STX
-
PHL
8h 22m
1 stop
$234Spirit Airlines
Fri, Apr 24 - Fri, May 1
Spirit Airlines Logo
6:00 am - 3:40 pm
PHL
-
STX
8h 40m
1 stop
Spirit Airlines Logo
4:37 pm - 11:50 pm
STX
-
PHL
8h 13m
1 stop
$247Spirit Airlines
Sat, Feb 28 - Fri, Mar 6
Spirit Airlines Logo
6:00 am - 3:40 pm
PHL
-
STX
8h 40m
1 stop
Spirit Airlines Logo
4:37 pm - 11:50 pm
STX
-
PHL
8h 13m
1 stop
$252Spirit Airlines
Sat, Feb 21 - Fri, Feb 27
Spirit Airlines Logo
5:57 pm - 2:40 pm
PHL
-
STX
20h 43m
1 stop
Spirit Airlines Logo
3:37 pm - 10:59 pm
STX
-
PHL
31h 22m
2 stops
$254Spirit Airlines
Fri, Apr 24 - Fri, May 1
Multiple Airlines Logo
8:06 am - 3:40 pm
PHL
-
STX
6h 34m
1 stop
Multiple Airlines Logo
3:26 pm - 11:19 am
STX
-
PHL
20h 53m
2 stops
$265Multiple Airlines
Mon, Feb 23 - Fri, Feb 27
Spirit Airlines Logo
6:48 am - 2:33 pm
PHL
-
STX
7h 45m
1 stop
Spirit Airlines Logo
3:31 pm - 8:39 am
STX
-
PHL
17h 08m
1 stop
$266Spirit Airlines
Mon, Mar 16 - Fri, Mar 20
Multiple Airlines Logo
6:05 am - 3:40 pm
PHL
-
STX
8h 35m
1 stop
Multiple Airlines Logo
4:37 pm - 12:21 am
STX
-
PHL
8h 44m
1 stop
$268Multiple Airlines
Mon, Feb 23 - Sat, Feb 28

Delta flights from Philadelphia to Saint Croix

Our best Delta deals on Philadelphia to Saint Croix flight tickets
Delta
Feb 19
PHL6:55 amPhiladelphia
7h 01m
1 stop
STX2:56 pmChristiansted Henry Rohlsen
Feb 26
STX3:58 pmChristiansted Henry Rohlsen
9h 26m
1 stop
PHL12:24 amPhiladelphia
$621
Delta
Feb 19
PHL6:55 amPhiladelphia
7h 01m
1 stop
STX2:56 pmChristiansted Henry Rohlsen
Mar 1
STX3:58 pmChristiansted Henry Rohlsen
7h 52m
1 stop
PHL10:50 pmPhiladelphia
$686
Delta
Feb 14
PHL5:31 amPhiladelphia
8h 25m
1 stop
STX2:56 pmChristiansted Henry Rohlsen
Feb 25
STX3:58 pmChristiansted Henry Rohlsen
9h 26m
1 stop
PHL12:24 amPhiladelphia
$871

Spirit Airlines flights from Philadelphia to Saint Croix

Our best Spirit Airlines deals on Philadelphia to Saint Croix flight tickets
Spirit Airlines
Feb 23
PHL6:00 amPhiladelphia
8h 40m
1 stop
STX3:40 pmChristiansted Henry Rohlsen
Feb 27
STX4:37 pmChristiansted Henry Rohlsen
8h 13m
1 stop
PHL11:50 pmPhiladelphia
$163
Spirit Airlines
Feb 23
PHL6:00 amPhiladelphia
8h 40m
1 stop
STX3:40 pmChristiansted Henry Rohlsen
Feb 27
STX4:37 pmChristiansted Henry Rohlsen
8h 13m
1 stop
PHL11:50 pmPhiladelphia
$191
Spirit Airlines
Apr 24
PHL5:57 pmPhiladelphia
20h 43m
1 stop
STX2:40 pmChristiansted Henry Rohlsen
May 1
STX3:37 pmChristiansted Henry Rohlsen
8h 22m
1 stop
PHL11:59 pmPhiladelphia
$229

momondo Fare Finder

 
Customize your flight search to find flights from Philadelphia to Saint Croix that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated February 9, 2026.
Use the filters below to find and compare flights from Philadelphia to Saint Croix that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PhiladelphiaChristiansted

PHL - STX

PHLSTX

Philadelphia

Mon 2/23

6:00 am-3:40 pm

1 stop8h 40m

Christiansted Henry Rohlsen

Fri 2/27

4:37 pm-11:50 pm

1 stop8h 13m

$163

PhiladelphiaChristiansted

PHL - STX

PHLSTX

Philadelphia

Mon 2/23

6:00 am-3:40 pm

1 stop8h 40m

Christiansted Henry Rohlsen

Fri 2/27

4:37 pm-11:50 pm

1 stop8h 13m

$191

PhiladelphiaChristiansted

PHL - STX

PHLSTX

Philadelphia

Fri 4/24

5:57 pm-2:40 pm

1 stop20h 43m

Christiansted Henry Rohlsen

Fri 5/1

3:37 pm-11:59 pm

1 stop8h 22m

$229

PhiladelphiaChristiansted

PHL - STX

PHLSTX

Philadelphia

Fri 4/24

6:15 am-2:40 pm

1 stop8h 25m

Christiansted Henry Rohlsen

Fri 5/1

3:37 pm-11:59 pm

1 stop8h 22m

$234

PhiladelphiaChristiansted

PHL - STX

PHLSTX

Philadelphia

Sat 2/28

6:00 am-3:40 pm

1 stop8h 40m

Christiansted Henry Rohlsen

Fri 3/6

4:37 pm-11:50 pm

1 stop8h 13m

$247

PhiladelphiaChristiansted

PHL - STX

PHLSTX

Philadelphia

Sat 2/21

6:00 am-3:40 pm

1 stop8h 40m

Christiansted Henry Rohlsen

Fri 2/27

4:37 pm-11:50 pm

1 stop8h 13m

$252

PhiladelphiaChristiansted

PHL - STX

PHLSTX

Philadelphia

Fri 4/24

5:57 pm-2:40 pm

1 stop20h 43m

Christiansted Henry Rohlsen

Fri 5/1

3:37 pm-10:59 pm

2 stops31h 22m

$254

PhiladelphiaChristiansted

PHL - STX

PHLSTX

Philadelphia

Mon 2/23

8:06 am-3:40 pm

1 stop6h 34m

Christiansted Henry Rohlsen

Fri 2/27

3:26 pm-11:19 am

2 stops20h 53m

$265

PhiladelphiaChristiansted

PHL - STX

PHLSTX

Philadelphia

Mon 3/16

6:48 am-2:33 pm

1 stop7h 45m

Christiansted Henry Rohlsen

Fri 3/20

3:31 pm-8:39 am

1 stop17h 08m

$266

PhiladelphiaChristiansted

PHL - STX

PHLSTX

Philadelphia

Mon 2/23

6:05 am-3:40 pm

1 stop8h 35m

Christiansted Henry Rohlsen

Sat 2/28

4:37 pm-12:21 am

1 stop8h 44m

$268

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Saint Croix from

How to get the cheapest flight ticket from Philadelphia to Saint Croix

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What airlines fly to Saint Croix?

American Airlines, JetBlue and Spirit Airlines are the top three most popular airlines that fly to Saint Croix from Philadelphia according to our data. American Airlines is the first choice among our users, with 62% of people opting to fly with this airline when traveling to Saint Croix. Keep in mind that there are 5 different airlines that fly to Saint Croix on a routine basis, so you have a few additional options to choose from.

Cheap Philadelphia to Saint Croix flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Philadelphia to Saint Croix

Fastest flight time

6h 15m

Direct flights

None
The fastest flight from Philadelphia to Saint Croix takes 6h 15m
There are no direct flights from Philadelphia to Saint Croix. There are no popular flight routes from Philadelphia to Saint Croix.
Search flight deals

  • When did momondo last update prices for flights from Philadelphia Airport to Saint Croix?

    Prices for flights from Philadelphia Airport to Saint Croix are refreshed on a daily basis.

  • How many operators does momondo search for flights from Philadelphia Airport to Saint Croix?

  • How old do you have to be to fly from Philadelphia Airport to Saint Croix?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Philadelphia Airport to Saint Croix.

  • What documentation or ID do you need to fly to Saint Croix?

    The travel and health documents you'll need for your trip to Saint Croix may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Saint Croix. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Philadelphia to Saint Croix

Compare and see reviews for airlines that fly from Philadelphia to Saint Croix with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $108Free CancellationRating
5.7
3,052 reviews
Search Frontier flights
DeltaPriceFrom $166Free CancellationRating
7.9
8,178 reviews
Search Delta flights
Spirit AirlinesPriceFrom $231Free CancellationRating
6.3
8,438 reviews
Search Spirit Airlines flights
American AirlinesPriceFrom $369Free CancellationRating
7.2
11,259 reviews
Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Philadelphia to Saint Croix?

Finding the right flight to Saint Croix from Philadelphia is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Saint Croix quick and easy, saving you time and money.

Can I find flights from Philadelphia to Saint Croix with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Saint Croix from Philadelphia with this policy.

How can momondo help me find flights from Philadelphia to Saint Croix?

Once you have performed a search for Philadelphia to Saint Croix flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Philadelphia to Saint Croix right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Philadelphia to Saint Croix flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Saint Croix trip

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